auditor can restore emails only to mydomain addresses

fix a bug in the check_your_permission_by_id_list() function

ldap_sync.php import fix

fixed a character encoding bug in the message body in the message view popup window

fixed a bug in the character conversion to utf-8 function

webui code cleanup

fixed minor webui bugs

fixed a bug in user search

fix a bug preventing the removal of the groups for a user

improved group handling

updated the group handling + revised admin permissions

webui code cleanup

added group handling feature

fixed some php notice messages

added bulk download feature

add bulk restore feature

admin user can tag search results, too

minor bugfixes

removed <?= php abbreviations

added tagging the search results

added retention policy web part

added retention rules to piler core

webui search fixes

memcached counter fix

health fix

added conversation available feature

added the webui to the tarball